Swing



Aug. 3), w49. cf N. ANDERSON SWING Filed DeG. 23, 1946 Patented Aug. 30,1949 STATES i SWING l 'Y Chester N. Anderson, Wichitaraus, Tex; yApplication December 23, 1946, Serial No.-718,066

z claims. (chata-1y Yinverted playgroundY swing ofi which the. followingisa specification.

The primary object of this invention resides in the provision of a newand novel swing adapted to be used in playgrounds and playyards for theamusement and healthful exercise of children.

Another object of this invention resides in the provision of a swingwhich is entirely new in construction and operation in view of thoseswings in use today.

Still another object of this invention resides in the provision of aswing of the nature described which is sturdy and durable with a minimumof moving and working parts likely to become worn or broken, and a swingwhich is of simple and inexpensive design.

Further improvements and advantages of this invention will readilyappear to those skilled in the art when the following description isread in the light of the accompanying drawing.

The drawing is a perspective pictorial view of the assembled swing.

Referring now to the accompanying drawing which illustrates thepreferred embodiment of this invention, A designates a U-shaped base forthe swing comprising three eight inch by eight inch rough timbers ofpine or the like adapted to be positioned end to end to form theLl-shaped base for the swing which is positioned in a flat condition onthe ground.

A pair of identical elongated triangular frames I and 2 of approximatelyone inch diameter pipe are secured by depending feet 3 and 4 to thatupper surface of each of the side timbers of theY base with their apex 5vertically disposed thereabove.

A fourth timber 6 lies in an interconnecting position on the uppersurfaces of the side timbers of the frame A with the opposite endsthereof directly beneath each of said apexes of the frames Y i and 2 andin such a manner so that the base side of each frame lies upon the uppersurface thereof. A pipe extension 'I interconnects the base sides ofeach of said frames in alignment with and at a slight spa-ced clearanceabove the timber 6.

A pair of pipe extensions 8 interconnect each of said apexes 5 angularlywith the extension I each at a spaced distance outward from the centerthereof. These angular extensions form strengthening braces for theframes I and 2.

A tubular bearing is provided about the extension 'l at the centerthereof between the base ends of the braces 8. The bearing 9 is providedwith a piuraiityofgrease fittings liuV thereon to enable the completelubrication ofthe swivel.

YA pairoftriasuiarframes I are secured with their lesser angle a-pexest2l 'secured' at a spaced distance apart to the tubular bearing 9 sothat the triangular frames I I extend vertically in parallel positionsand in transverse alignment of the swing base, said frames having theirupper ends at a spaced distance above said side frames I and 2. Theseframes I I are interconnected by a plurality of spaced rungs I 3extending from the lower ends thereof upward to terminate at a positionadjacent the upper ends.

Side braces I4 strengthen the frame between its own sides.

A pair of lubricated pipe swivels I5 are rotatably mounted oncorresponding vertical braces IB one on either of the frames II at aspaced distance between the base and the upper end thereof. Theseswivels I5 are provided With an outwardly disposed eye hook I1 adaptedto be firmly secured to one end of a tempered steel coil spring I 8.

The second end of said spring I 8 is secured to a chain eye I9 carriedat the upper inner side of the apex of each of said outside brace apexes5.

A cylindrical drum 20 is mounted horizontally between the frames I I ata spaced distance from the upper ends thereof providing a seat for theswing occupant.

Thus it may be seen that a child may climb upward the rungs I3 of theswing frame I I to gain a seat on the drum 20. Then by exerting aswinging motion back and forth in alignment with the longitudinal axisof the swing base the swing frame II will pivot and rock on thetransverse bearing Si allowing the swing to move in one direction andthen another to the extent of the limit allowed in each direction by theresiliency of the springs I8, the resiliency limit of which willincrease with an increased swinging effort.

It may also be seen that the cross braces and rungs of the swing frameprovide limited apparatus for Vfurther exercises such as chinning andthe like.

Having thus described the construction and function of this inventionand with full belief that modifications in size, shape and generalcharacteristics would not constitute a departure from the spirit of thisinvention, what I desire to claim in Letters Patent is:

l. A swing of the character described comprising a substantially iiatrectangular base, a pair of triangular upright braces, verticallysupported in spaced parallel relationship transversely of said basemember, a cylindrical extension interconnecting the triangular uprightsat the bases thereof, a pair of angular braces interconnecting the upperends of said triangular braces with points at spaced relationship onsaid cylindrical extension, a tubular bearing rotatably mounted on saidcylindrical extension at the center thereof, a swing frame comprising apair of interconnected identical triangular frames vertically supportedand being rconnected with the tubular bearing, to pivot therewith on thelongitudinal axis of said cylindrical extension, a pair of vertical pipeswivels mounted on the swing frame at points intermediate the ends ofthe swing frame, and coiled springs interconnecting said pipe swivelswith the upper ends of the upright braces, said springs limiting pivotalmovement of said swing frame about said cylindrical extension.

2. A swing of the character described comprising a flat base memberadapted to be horizontally supported on a-supporting surface, a pair oftriangular upright braces vertically supported in spaced relationtransversely of said base member,

a bearing -member interconnecting the triangular uprights at the lowerends thereof, a pipe swivel rotatably mounted on said bearing member atthe center thereof, an elongated swing frame vertically supported onsaid swivel between said uprights and paralleling them, and springmembers connected with the upper ends of the triangular supports, saidspring members extending downwardly and being connected with theelongated swing frame at points intermediate the ends thereof,regulating the movements of the swing, and said swing adapted to swingforwardly and rearwardly between said uprights.

CHESTER N. ANDERSON.

REFERENCES CITED The following references are of record in the ile ofthis patent:

UNITED STATES PATENTS I Number Name Date 135,738 Tuttle Feb. 11, 18731,939,927 Shael' DBC. 19, 1933

